Improvement in planing-tools



Unirse STATES PATENT Orrrerr NATHANIEL RUSSELL, OF PLYMOUTH,MASSACHUSETTS.

lNlPROVENl ENT IN PLANlNG-TOOLS.

Specification forming part of Letters Patent No. 113,800, dated April18, 1871.

To all whom 'it may concern:

Be it known that I, NATHANIEL RUSSELL, of Plymouth, in the county ofPlymouth and State of Massachusetts, have invented a new and usefulImprovement in Planing-Tool; and Iv do hereby declare that the followingis a full, clear, and exact description thereof, which will enableothers skilled in the art. to make and use the saine, reference beinghad to the accompanying ndrawing, 'forming part of this sp'eeiiication.l l

This invention relates to a new and useful improvement in tools forplaning Wood and meta-ls; and consists in confining a series of steelplates in a hollow bloeit or case by means of a screw or keys or wedges,or in any substantial manner, sov that the plates may be conlined at anyangle for use or for grinding, the cutting-.edges of the said platesbeing eitherI beveled or square, the construction and arrangement heiligas hereinafter more fully described.

In the accompanying drawing, Figure l represents a vertical longitudinalsection of Fin'. 2, taken on the line a' af. Fig. 2 is a top or planview.

Similar letters of reference indicate corresponding parts.

A is a hollow block or` 4case et' suitable size and strength, made ofmetal, with a fasteningscrew, B, passing throughiene end. C represents aseries of thin steel plates, which correspond in width with the cavityin the block or case A, and which proie-et up above the block or ease,as seen in Fig. l, more or less, as may be desired. The plates lare of'uniform size, and all rest upon the bottom of the cavity in the block.The outer edges of these tion, as represented, so that sharp projectingcutting-angles will come in contact with the surface of the wood ormetal, or other material to be plaued or smoothed, giving the face afine saw-tooth appearance. i

The plates may be made with square edges and placed in an inclinedposition, and will operate in that manner; but the cutting-angles will,in that case, be simply right angles, and consequently not so sharp andwell adapted to the purpose as -when the edges are heveled.

The plates may be fastened by one or more screws, or by keys or wedgesarranged and operating on the plates-in any manner suit-a ble for thepurpose et' holding them in any required position. l

When the cutting-edges become dull from use, they are fastened in theblock at any angle which will give their edges the required bevel orshape, and then they are all ground together and of uniformi shape.

The planer may be applied to either wood,

metal, or other material, and he operated by

